Planooraph co



S. COOPERL LIQUID DISPENSING APPARATUS.

APPLICATION FIILED FEB. I1. 1916. RENEWED APR- 4. I919.

1,319,876. Patented Oct. 21,1919.

2 SHEETSSHEET I.

w m Q inventor: fi w THE COLUMBIA PLANOGRAPH CO., WASHINGTON. o. c,

S. COOPER.

LIQUID DISPENSING APPARATUS,

APPLICAT 0N FILED FEB. I1. 1916 RENEWED APR-4.1919. 1,319,376..

Patented Oct. 21, 1919.

2 SHEETS-SHEET 2- illilllllllll. Illlll I H fl A ttest f A tty couman F'LANOGRAPH uu., WASHINGTON,1;(.,,

THE

; urn]; sTA EsiA- NT oF icE.

SIMON- coornmor BROOKLYN; NEW YORK, ssrenoa TO"-IINE int cRYsTAL SPRING WATER COMPANY, or New YORK,"1\T. Y.-, ncoanonarioiv on NEW JERSEY;

f-LIQUI D-D ISPENSING ii rrnan rus.

To all whom it ma t concern": l

Be it known that I, SIMON. COOPER, a citi- 'zenof;the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented'certain newand useful Improvements in Liquid-Dispensing Apparatus, of which the following -is a specification. This invention relates to dispensing apparatus for liquids, and the invention is particularly applicable for dispensingbeverages from large inverted containers. Such apparatus in operation produces a hydrostatic balance between the column of liquid withinthe receptacle and the column outside; The liquid is dispensed'fro'm the outer column and this disturbs the equilibrium of the columns and tends to produce a flow from the inner'column to the outerrone. In order. to facilitate this flow it is necessary toadmit air to the'partial vacuum chamber within the container above the column of liquid within it. i

Applicants prior Patent. 1,236,912 deals with this general proposition, but in asome- What diiferent manner than that contemplated in the present case. The specific construction of the air inlet means isdifl'erentin bothcases, in his former case the inverted container and the delivery chamber have independent or separate air inlets and inorderto prevent the liquid from flowing out from the container, also for normally preventing air 3 from leaking into the same, there is provlded alhydrostatlc seal, Whereas in the present case he provides an airpassageway between the two liquid columns, and has a constantly open vent associated onlywith the delivery chamber leading to the atmosphere.

'One of the objects of this invention is to provide very simple and eflicient means for effecting this admission of air but with the parts so organized as to prevent any flow of water through the air inlet means. Among the other objects of the invention is to provide means for enabling the ad mitted airto be purified if. desired. a V Fur her objects of the invention will .appearhereinafter. 1 f i l The invention consists .in L the general combination of parts, and features described in, the followingf specification while the broadscope of-the;invention is setforthin the claims.

specification of lettersPatent. Patent d 1919 Applicationfiled Februaryyii, eijseriaiim.

Renewed April 4, [1919i seriaiir 28:332.

In the drawing, Figural is a vertical section through apparatus embodying. my nventiong Fig. Zis a vertical section. upon aglarge scale showing in detail one embodi ment of the, air inlet means; Fig. 311s a horizontal cross section on the line 33 ot Fig. '2; ig'. 4 is a View similar Fig. 2 but showing a modification; Fig. 5is .a simi lar .view' showing another modification; Fig. 6 is a horizontal section on. the line 6f6 of Fig. 5,; Fig. 7 is another vertical section showing another modification; and Figiy8 is across'sec'tion on thelin'e 8 8 of. Fig. 7. The container 1 is, for example, in the form of a large bottlereceived in an inverted position; in a bottle holder 2. Q At its lower side or neck 3it communicates with a delivery chamber-or cup 4 and when the container is in position there is developed a-hydrostatic balance or. state of equilibrium between the liquid column .5 within the container, and the column 6 in the delivery cup or chamber 4:,the effect being to produce a partial vacuum in the chamber -7 above the liquid column 5. Equilibrium is established when the atmospheric pressure and the column 6 equal the water column 5 and the attenuated pressure in the vacuum chamber 7. The communication between the water columnsisbest effected by means of a duct preferably having an-enlarged upper portion 8 and a reduced lower portion 8, the latter extending down into the f delivery chamber 4. and below therlevel of the liquid column 6.

Means such as the stopcock 9 is provided for drawing off liquid from "time 'to time from the column 6. When this is done the level o-fthe water column-6 descends and this disturbs the equilibrium and produces a flow of liquid from the column 5 to the column 6.1 When this occurs air shouldbe admitted to the partial vacuum chamber .7, i

bined effect is;- to give arelatively steady or regular inflow of air, which tends to produce a steady flowing stream at the stop cock?) characterized by the absenceofviolence and splashing. In FigQ S by way of eXample I'hav'e illustrated SlX" of these alr 4 inlets, but theremay be moreor less of them as desired, If In Fig, 2 thecollar is relatively thick giving relatively long vents and g1V mgfrelatively: sluggish flow through the duct '8 8 j 1 1B alteringzthe features of construction of the nletlvents the action of the stream flowin'gthroug'h the duct may be varied as de "sired, for example,by employing a relatively thin.c'o1lar(see Fig. 4) or by providing such a collarf13' (see Fig; 8) with a relat vely great number of vents 14-.

The .vents may be formed in any manner desired, for eXamp1e,-by drilling the collars or formingthecollars of fine'gauze, or if desired theventsmay be formed by forming them in the inner edge of the collar 15 (see Fig; 6.) in which case they maybe-in the formof small slits 16. j

The communicating duct is preferably formed in a plug comprising an upper metal tube 17,the bore of which forms the duct 8, and a smaller tube 18 connected by the collar 11, the upper tube having atapered gasket or bushing 19 of cork, rubber or similar material adapted; to form'an effective stopper for the bottle neck. i

In order to prevent any spilled 7 liquid from'finding' its wa into the deliverychamher I prefer to 'providethe same with a tight cover QO surmounted by a funnelniouthed cup 21 which assists in'guiding the bottle neck into place, and rovided with drainopenings22. If desire fastening deatmosphere maybe maintained by meansof vices such. as rivets 23' through the collar may'secure these parts all together. "Communication of the chamber 4 w th the a tubef24c which may. be provided withva goose-neck 25 which may be provided if desired with a porous disinfectant such medicated gauze as illustrated 'at'24cl v V i As is usual with such apparatusthe delivery chamber 4E; and contiguous parts of the" apparatus are held .in a case 26 Which may be 'provided with a removable ice holder 27, access being bad to the interior bymeans ofa removablecover 28.

Thejcharacte'r of the vents has considerable influence on the variations of le'velthat will occur in'the liquid column 6 but in every case. the duct 8 should be longenough to insure that its lower end will never be uncovered .(see Figs. 4:, 5 and v7). If that should occur it would break the-hydrostatic seal which is formed ,atithis point 'and the i V apparatus would then not operate 'in its normalwayj It is desirable that the vents should be small, that is, of a capillary nature," because then the surface tension of the liquid'standing in the vents is high and operates sothat the surface pressureon the outer flowing out through it. p H 3 It is: understood that the embodiment of the invention set forth herein is'only one of the many embodiments the invention may take, and I do not wish tobelimited in the practice of my invention nor in my claims totheparticular embodiment set forth.

I claim: 7 if 1. Inga liquid dispensingapparatus, the

combination of an inverted container for V holding a column of the liquid with a tial vacuum" chamber above the liquid column, a delivery chamber to contain a second column of the liquid in communication with said firstcolurnn so thatsaidliquid columns normallyl liydrostatically 'loalafnce 7 each other, means for drawingoff the liquid from said second column andtliereby causing a'flow of liquid from said-1 first column to said second-colum nand constantly open air inlet means comprising a plurality of small vents exposed to the atmosphere on the outer side and communicating with the interior of said container on the innerside for admitting air to the said partial vacuum chamber whensaid How ,of liquid between the said liquid columns occurs, the "vent/Sin said "air inlet means operating as capillary tubes to prevent the liquid from flowing therethrough.

2. In a liquid dispensing apparatus, the. .combmat1on ofzan mverted' container for holding a column of the liquid with a'p'artial vacuum chamber above thelliquidcolumn, a

delivery chamber to contain a second column of the liquid in communication with "said";

first. column T so that said f liquid jco'lumns normally. 'hydrostatically b nnee each other,- 7

means for drawing off theliquid from said second column and therebyycauslng a flow of liquid fromsaid firstcoliiinn tosaid. sec 1 ond column, and a plug lnthelower iside of sald container havlng a communicatingfduct stantly open air-inlet mefans arrangedbd for said liquid columns and "having" conlow said plug communicating onits side with the1nter1orofsa1d container and v exposed on its under" sideto the atmospheric pressure whereby the atmospheri e; pressure ass ng down-5,

prevents w th liquid; fmi wardly' thereth 1- 3.111 a liquid dispensing combination of an inverted container for Y holding a column 'of'the liquidwitli a'partial 75 side of each vent preventsjthe liquid from V I vacuum chamber above the liquid column, a deliver.y chamber to contaln a second col: of the liquid in communication with saidjfirst column so that said liquid columnsnormally hydrostatically balance each other, means for drawing of]? the liquid fromsaid second column and thereby causing alflow of liquid from said firstccolumn to said second column, and a plug in the lower side of said container having a com municating duct for said liquid columns and having a plurality of constantly open air vent s communicating on their upper V sides with the interior of said container and on their,,lower"ides with the atmosphere whereby'the atmospheric pressure prevents flow of the'liquid therethrough.

{4. In a liquiddispensing apparatus, the

combination offan inverted container for holding a column ofthe liquid with a partial vacuum chamberlabove the liquid cola deliverychamberto contain a second of the liquid in communication with duct for said liquidcolumns, said duct hav-y said first column so that said columnsnormally hydrostatically balance each other,

means for d w ng Q fi e qu m s i second columns andthereb'y causing a' flow column tosaidsecin the lower side of ond column, and a-plug V a communicating said container {having ing a lower' portion of reduced diameter, and having a plurality of air inlet vents communicating on'their. upper sides with the interior of said container and on their under 'sides' with the atmosphere whereby the atmospheric pressure prevents the liquid from passingtherethrough.

5; In a liquiddispensing apparatuathej combination of an inverted container I for a holding fa liquid column with: a; partial,

vacuum 'chamber above saidcolumn, a plug in the lower side of said containerhavingfa duct with an enlarged upper portion anda reduced flowenportion, a delivery chamber receiving said reduced portion and for holding a second liquid column so that said liquid -columns hydrostatically balance'each sufficiently 5 small to enable "the atmospheric pressure to Prevent: the fl w l ui th rethrough. I

6;. In liquid apparatus, the

I combination .of an, inverted container for holding "a liquid colunm with a partial vacuum chamber above a saidcolumn, a plug in the lower side of said container, havmga combination of duct with an enlarged upper portion and a reduced lower portion, a delivery chamber receiving said reduced portion and for holding a second liquid column so that said liquid columns hydrostatically balance each other, means for drawing off the liquid from the said delivery chamber and thereby producing a flow of liquidifrom said first column to said second column, said plug havinga plurality of open inlet air vents adjacent the junction ofthe enlarged and reduced portions of said duct, said air vents being sufficiently small to enable the atmospheric pressure on the under side of saidvents to prevent the flow of liquid therethrough, i i

7. 111 3, liquid dispensing apparatus,: the combination of an inverted container for holding a liquid column with a partial vacuum chamber above said column, a plug in the lower side of said container, having a duct with an enlarged upper portion and a reduced lower portion, a closed delivery chamberreceiving said reduced portion and for holding a second liquid column so that said liquid columns hydrostatically balance each other, means for drawing off the liquid from the said delivery chamber ducing'a'flow of liquid from said first'column to second column, said plug having a pluralityof open inlet air vents adjacent the junction of the enlarged and reduced portions of sa1d duct, sa1d an vents being sufii- ,ciently small to enable the atmospheric pres sure 'on the under side of said vents to prevent the; flow of liquid therethrougl1,and an air inlet, means for said delivery, chamlber constructed to receive a disinfectant.

S. In a liquid dispensing apparatus, the a container for holding a colu n of the liquid with a partial vacuum chamber above the liquidcolumn, a delivery chamber to contain a second column of the liquid in communication with said first column so that said liquid columns norm ally hydrostatically balance each other, for drawing off the liquid fromsaid second column and thereby causing a flow of liquid:

from said first column to said second column, and constantly openair-inlet means comprising'a plurality ofsmall vents arranged between "said container and delivery chainber exposed to the atmosphereon the lower side and communicating 'withthe; interior of said container on; the upper side for admitting air to the said partial vacuum chamber whenf'said diow of liquid betweenthe said liquid columns occurs, the surface pressure onthe underside of said vents operating to P W F the i throughf combination of an inverted container for holding a column of theliquid with a partial and thereby pro means quid from passing there-U 95111 a "liquiddispensing" apparatus, the

stationary delivery chamber to contain'a second column of theliquid in oomniunioa tion with said first column so that saidliquid columns normally hydrostatically balance eachother, means for drawing off the liquid fromsaid second column and thereby causing a'flo'w of liquid from'said'fir'st column to said secondcolumn, and constantly open air inlet means arranged between said con tainer and delivery chamber exposedjto the atmosphere and connnunioating with the interior of said container for admitting air to the said partial vacuum chamber whensaid flow of liquid between the said columns occurs. V q f 10. In a liquid dispensing apparatus, the

combination of an inverted container for holding a column of the liquidwitha' partial vacuum chamber above the liquid'column, a-delivery chamberto contain a second column of the liquid in connnunication with said first'column so that said liquid columns normally hydrostaticallybalance each other, means for drawing off the liquid from said second column and thereby causingia flow of liquid from said first column to said second column, and constantly open air inlet means carried by the delivery chamber exposed to the atmosphere and communicatingwith the interior of said container for admitting air to the said partial vacuum chamber when said flow of liquid between the said liquid columns occurs.

11. In a liquid dispensing apparatus, the

combination of an inverted container for holding a column ofthe liquid with a partial vacuum chamber above the liquid column, a stationary delivery chamber to contain a second column of the liquid in 'communica.

tion with said firstcolumn so that said liquid columns normally 'hydrostatically balance eachv other, means for drawingofl the liquid from, sald second column and thereby causing a flow of l1qu1d from sale first column to said second column, avplug in the container and constantly open air in let means secured to the plug and arranged between the' container and delivery chain-f ber'exposed to the atmosphere and oommuni eating with the interior of the containe1f for admitting air to the said partial vacuum chamber when said flow of liquid between the said liquid columns occurs.

12; In a liquid dispensmg apparatus, the combination of an inverted container for holding a column of liquid with a partial vacuum chamber above the liquid column, 7 a delivery chamber to contain a second col-f umn of the" liquid having atube connection in communication with said firstc olumn so, that said liquid columns normally hydrostatically balance each' other, means. for

Copies of this patent may he obtaineii for chamben drawing off the liquid from thesaidsecond column" thereby causing a flow of liquid from said first columnto said second column and constantly open air inlet means secured 7 to and arrangedg about said tube connection exposed 1 to the: atmosphere and communicating with the interionof said container for admitting air to the said partial vacuum chamber: when said fio'w of liquid between the said liquid columns occurs.

13. In a liquid dispensing apparatusthe combination of an inverted container for holding a columnof liquid with 'apartial vacuum "above the liquid column, afdelivery chamber to contain a second column'in communication with said first column so that said liquid columns normally hydrogen; cally balance each other, and a. communi l A I 1 eating air duct between "the containerend e dispensing;apparatus, the l hydrostatically balance each other and fa communicating air duct between the container and thefdelivery chamber exposed to atmospheric pressure within said chamber for reestablishing this balancewhenaportion" of the liquid is drawnfrom thedelivery 15; In a liquid dispensing apparatus the combination of a reservoir ;for holding a column of liquid, a delivery chamber open to the atmosphere to contain second col- I I 1mm, said chamber in communicationIwith.

the reservoir so that the liquid. columns hydrostatically balance'each other and ,connnunicating 'air duct betweenthe container and the delivery ch'amber eiiposed to V atmospheric 7 pressure within said chamber for reestabhshingjthis balance when ai -po tion of the liquidiis drawn from. the do;

livery cham ber,

16. In afliquid displiihga psrui, the comb-matlonbf a reservoir for holding a 1 column ofiliquid, a delivery charri'beritd COIL,

tain a second column. in communication with the reservo r} so that. Said llquid 1 columns hydrostatically balance eac other, and a constantly open inlet duct to both, columnsifor reestablishing this balance when a portionbf the liquid is drawn from the delivery chambers i In testimony whereoh' i l i I Iii five cents each, by addressing the dom n i ssioner et Patents. V Washington, '1). c." 

